N7DR

Substantial
None

Beech P-35S/N: D-6995

Accident Details

Date
Saturday, May 29, 2004
NTSB Number
SEA04LA094
Location
Havre, MT
Event ID
20040608X00748
Coordinates
48.549446, -109.750000
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
4
Total Aboard
4

Probable Cause and Findings

A loss of engine power due to fuel starvation during the initial climb after takeoff as a result of an unsecured fuel sender unit which resulted in a false fuel quantity indication.

Aircraft Information

Registration
N7DR
Make
BEECH
Serial Number
D-6995
Engine Type
Reciprocating
Year Built
1962
Model / ICAO
P-35BE35
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Registered Owner (Historical)

Name
HERMAN WALTER E
Address
116 S AVENUE C
Status
Deregistered
City
HUMBLE
State / Zip Code
TX 77338-4503
Country
United States

Analysis

On May 29, 2004, approximately 1310 mountain daylight time, a Beech P-35, N7DR, registered to and operated by the pilot as a 14 CFR Part 91 local flight, experienced a loss of engine power shortly after takeoff from Havre, Montana. During the emergency landing, the aircraft was substantially damaged. Visual meteorological conditions prevailed at the time and no flight plan was filed. The commercial pilot and his three passengers were not injured.

During a telephone interview and subsequent written statement, the pilot reported that just after lift-off from runway 25, he verified a positive rate of climb and retracted the landing gear. Shortly thereafter, the pilot felt a slight hesitation in the engine. The pilot switched the fuel selector when the engine suddenly lost power. The pilot noted that at this time the aircraft had drifted about 200 feet off of runway centerline. He immediately lowered the nose to maintain airspeed and extended the landing gear to re-land on the remaining runway. The aircraft touched down and the right main gear collapsed. The right wing contacted the runway surface and the aircraft spun around coming to rest near the end of the runway.

After the aircraft was removed from the runway and placed in a secured location, a Federal Aviation Administration Inspector from the Helena, Montana, Flight Standards District Office, and a certified Airframe & Powerplant, Inspection Authorization mechanic inspected the aircraft. The mechanic reported that during the engine inspection, no evidence of a mechanical malfunction was noted. No fuel leaks were detected. The fuel selector was checked and found functional.

Both fuel tanks were inspected for fuel and a trace amount of fuel was found in each fuel bladder. Inspection of the right wing inboard fuel sender found that the unit was unsecured. The left wings sender unit was secured. Both sender units were checked for cockpit indications. Both indicated empty when the float was extended to the bottom of the tanks and indicated fuel levels throughout the movement of the float from top to bottom. Approximately three gallons of fuel was put in the right side fuel tank to inspect for leaks. None were detected. The left wings piping structure had pulled out of the bladder connector during the accident sequence which allowed fuel to drain from the left fuel tank therefore fuel quantity could not be determined. The left and right side fuel tanks are not interconnected.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA04LA094